Asco 300-150A-1Ph-Open Transition ATS-NEMA 1

…Great for Selected-Circuit 1-Phase Backup

Asco 300-Series automatic transfer switches are heavy-duty commercial-grade models that can be used for commercial or residential purposes. This 150-Amp 1-phase model is open-transition rated; this means that it does not harbor an internal circuit breaker for disconnecting the utility or main power source before backup generator power is applied. An electrician handling installation of the switch will need to supply that breaker, however this is a simple and routine procedure. We recommend this switch for the following Winco standby generators: models PSS8B, PSS12H, PSS15B, PSS21-3, PSS30LS-3, PSS40LS-3, PSS60LS-3, and PSS90LS-3. Standard 18-month warranty. Optional extended warranties available at checkout (see Accessories tab for details).

Important: Please see the shipping tab for information regarding the freight on generator accessories.

Spec Sheet Pdf

Warranty

18-month limited warranty

Shipping

Asco transfer equipment is shipped either from T-Rex facilities in Utah, or from Asco factory locations in New Jersey or Texas, via standard UPS ground. In all instances, T-Rex makes no profit on shipping. For every accessory we sell, our customers will be charged only what Asco or another vendor has charged us. Shipping to your location will be calculated during checkout. Please allow up to 10 business days for delivery.